[1]丁阳,崔中豪,石运东.近场地震作用下三维隔震网壳隔震层位移响应研究[J].地震工程与工程振动,2019,39(04):065-72.[doi:10.13197/j.eeev.2019.04.65.dingy.007]
 DING Yang,CUI Zhonghao,SHI Yundong.Study on the isolation displacement response of three-dimensional isolated reticulated shells under near-fault ground motions[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(04):065-72.[doi:10.13197/j.eeev.2019.04.65.dingy.007]
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近场地震作用下三维隔震网壳隔震层位移响应研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年04
页码:
065-72
栏目:
论文
出版日期:
2019-09-30

文章信息/Info

Title:
Study on the isolation displacement response of three-dimensional isolated reticulated shells under near-fault ground motions
作者:
丁阳12 崔中豪1 石运东12
1. 天津大学 建筑工程学院, 天津 300350;
2. 滨海土木工程结构与安全教育部重点实验室, 天津 300350
Author(s):
DING Yang12 CUI Zhonghao1 SHI Yundong12
1. School of Civil Engineering, Tianjin University, Tianjin 300350, China;
2. Key Laboratory of Coast Civil Engineering Structure and Safety, Ministry of Education, Tianjin 300350, China
关键词:
三维隔震单层球面网壳近场地震地震动强度参数无量纲参数位移预测
Keywords:
three-dimensional isolationsingle-layer spherical reticulated shellsnear-fault ground motionground motion intensity measuresnon-dimensional parametersdisplacement predication
分类号:
TU352.1+2
DOI:
10.13197/j.eeev.2019.04.65.dingy.007
摘要:
三维隔震可有效降低单层球面网壳等竖向敏感结构的震害发生几率,但在近场地震动作用下隔震支座产生大位移是影响三维隔震结构可靠度的关键问题。以三维隔震凯威特K8型单层球面网壳结构为对象,通过简化模型运动方程的建立及二维与三维隔震结构隔震层位移响应对比,分析三维隔震结构隔震层水平与竖向位移耦合效应;基于无量纲化结构动力方程,研究结构参数与隔震层位移响应间的关系;基于地震动强度参数,提出三维隔震结构隔震层位移预测方法;通过联方型等多种单层球面网壳数值模拟证明了其在不同形式单层球面网壳中的可行性。
Abstract:
Three-dimensional(3D) isolation can effectively reduce the earthquake damage probability of vertical sensitive structures such as single-layer spherical reticulated shell. However, the large isolation displacement affects the 3D isolated buildings’ seismic reliability under the excitation of near-fault earthquake. Taking the 3D isolated Kiewitt-8 single-layer spherical reticulated shells as research objects, the coupling effects of horizontal and vertical displacements were investigated through the establishment of simplified equations of motion and comparisons between the isolation displacement responses of two-dimensional and 3D isolated buildings. Based on nondimensionalization of the equation of motion, the relations between structural parameters and isolation displacement were studied. Displacement predication methods were proposed based on intensity measures. Simulations were conducted for couplet type and other types of single-layer spherical reticulated shells to demonstrate the accuracy of the formulas.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-1-10;改回日期:2019-3-5。
基金项目:科技部国家重点研发计划课题项目(2016YFC0701103,2018YFC1504304)
作者简介:丁阳(1966-),女,教授,博士,主要从事钢结构与空间结构设计理论研究.E-mail:dingyang@tju.edu.cn
通讯作者:石运东(1983-),男,副教授,博士,主要从事结构振动控制研究.E-mail:yundong@tju.edu.cn
更新日期/Last Update: 1900-01-01